| Инд. авторы: | Sukhikh T.S., Bashirov D.A., Ogienko D.S., Kuratieva N.V., Sherin P.S., Rakhmanova M.I., Chulanova E.A., Gritsan N.P., Konchenko S.N., Zibarev A.V. |
| Заглавие: | Novel luminescent β-ketoimine derivative of 2,1,3-benzothiadiazole: Synthesis, complexation with Zn(II) and photophysical properties in comparison with related compounds |
| Библ. ссылка: | Sukhikh T.S., Bashirov D.A., Ogienko D.S., Kuratieva N.V., Sherin P.S., Rakhmanova M.I., Chulanova E.A., Gritsan N.P., Konchenko S.N., Zibarev A.V. Novel luminescent β-ketoimine derivative of 2,1,3-benzothiadiazole: Synthesis, complexation with Zn(II) and photophysical properties in comparison with related compounds // RSC Advances. - 2016. - Vol.6. - Iss. 50. - P.43901-43910. - ISSN 2046-2069. |
| Внешние системы: | DOI: 10.1039/c6ra06547c; SCOPUS: 2-s2.0-84971411321; |
| Реферат: | eng: A novel β-ketoimine-functionalized 2,1,3-benzothiadiazole (4-(2,1,3-benzothiadiazole-4-ylamino)pent-3-en-2-one, L2H) was synthesized and used as chelating ligand for the complexation with Zn(ii) (complex ZnL2). The spectroscopic and photophysical properties of L2H and ZnL2 as well as those of previously described 4-amino-2,1,3-benzothiadiazole (L1) and its complex ZnL1 have been thoroughly studied in the crystalline state and solution. The UV-Vis absorption spectra of free ligands L1, L2H and its deprotonated form L2-, and complexes ZnL1 and ZnL2 were assigned on the basis of TD-DFT calculations. In contrast to ZnL2 having conventional single-band fluorescence, ZnL1 demonstrates a broad double-band purple-white fluorescence spanning the entire visible region. On the basis of careful spectroscopic studies the second band of this unusual fluorescence spectrum was attributed to the presence of traces of free ligand L1 in the crystals of complex ZnL1. The energy transfer from the excited state of ZnL1 to a free ligand L1 was revealed. © The Royal Society of Chemistry 2016.
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| Ключевые слова: | White fluorescence; UV-VIS absorption spectra; Td-dft calculations; Spectroscopic studies; Photophysical properties; Fluorescence spectra; 2 ,1 ,3-Benzothiadiazole; 1 ,3-benzothiadiazole; Zinc compounds; Zinc; Ultraviolet spectroscopy; Spectroscopic analysis; Ligands; Fluorescence; Energy transfer; Crystalline materials; Excited states; |
| Издано: | 2016 |
| Физ. характеристика: | с.43901-43910 |